Test instrument



FIG. 1 is a front view of a test instrument of our design;

FIG. 2 is a rear view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a top view thereof;

FIG. 6 is a bottom view thereof;

FIG. 7 is a top front perspective view thereof; and,

FIG. 8 is a top rear perspective view thereof.

All broken lines represent portions of the test instrument that form nopart of the claimed subject matter.

CLAIM We claim the ornamental design for a test instrument, as shown anddescribed.